Hasbro released Thunder Dragon as Thunder Serpent.
Bit Protector (BP): Thunder Emblem
The Bit Protector of this Beyblade is Thunder Emblem. It is the second mold version of Bit Protectors.
Attack Ring (AR): Spark Dragon
Weight Disk (WD): CWD Free Survivor
Main article: Weight Disk - CWD Free Survivor
- Weight: 17 grams
CWD Free Survivor is the one part that can truly make Thunder Dragon a worthy purchase. CWD Free Survivor has an almost identical design to the Survivor Ring of the Dark Series of plastic Beyblades, except that it is free spinning as the name implies. With its circular form, CWD Free Survivor is a welcome addition to many types of Beyblades. It can protect against Upper Attack, and is heavier than even Circle Heavy.
Ideally, it should be used with the heavier CWD Metal Part from Sea Dragon's CWD Defense Ring, though the fact CWD Defense Ring generally serves the same purposes as CWD Free Survivor should be considered if on a restrictive budget.
Use in Defense Customization
You can build a nice, heavy Defense customization by utilizing CWD Free Survivor. For ideal performance, the RC should be somewhat worn to increase grip.
- AR: Samurai Upper (Samurai Changer MS)
- WD: CWD Free Survivor (Thunder Dragon)
- RC: Bearing Core 2 (Jiraiya MS)
Running Core (RC): Metal Weight Flat Core
Main article: Running Core - Metal Weight Flat Core
- Weight: 3 grams
Metal Weight Flat Core can be considered an upgrade to Gaia Dragoon MS's Flat Core. The added weight on the interior of the RC makes it slightly heavier, and moderately increases its survival and controllability compared to Flat Core. However, this is where the differences end; Metal Weight Flat Core has the exact same design as Flat Core in all other respects.
The Takara Metal Weight Flat Core has a wider tip than the one that Hasbro produced. This results in a higher movement speed in the Takara version.
Use in Upper Attack Customization
Metal Weight Flat Core is not the most desirable choice out there for Attack types, but it can be used.
- AR: Slash Upper (Slash Riger MS)
- WD: Circle Wide
- RC: Metal Weight Flat Core (Thunder Dragon)
Aside from CWD Free Survivor, Thunder Dragon does not have a lot to offer, and even CWD Free Survivor has been outclassed by other parts. If you already have CWD Defense Ring, or even CWD God Ring from Shining God MS, there is no reason for you to buy this Beyblade.